<p>Given two sorted arrays <code>nums1</code> and <code>nums2</code> of size <code>m</code> and <code>n</code> respectively, return <strong>the median</strong> of the two sorted arrays.</p> <p>The overall run time complexity should be <code>O(log (m+n))</code>.</p> <p> </p> <p><strong>Example 1:</strong></p> <pre> <strong>Input:</strong> nums1 = [1,3], nums2 = [2] <strong>Output:</strong> 2.00000 <strong>Explanation:</strong> merged array = [1,2,3] and median is 2. </pre> <p><strong>Example 2:</strong></p> <pre> <strong>Input:</strong> nums1 = [1,2], nums2 = [3,4] <strong>Output:</strong> 2.50000 <strong>Explanation:</strong> merged array = [1,2,3,4] and median is (2 + 3) / 2 = 2.5. </pre> <p> </p> <p><strong>Constraints:</strong></p> <ul> <li><code>nums1.length == m</code></li> <li><code>nums2.length == n</code></li> <li><code>0 <= m <= 1000</code></li> <li><code>0 <= n <= 1000</code></li> <li><code>1 <= m + n <= 2000</code></li> <li><code>-10<sup>6</sup> <= nums1[i], nums2[i] <= 10<sup>6</sup></code></li> </ul>